Improvement in coke-ovens



4 Sheets-Sheet 1.

W. H. ROSEWARNE. Coke-Oven.

4 sheets-sheetz. W. H. ROSEWARNB.

Coke-Oven.

No. 208,930. 4Patented oct. 15, 1878.

NJ'EYERS. PHOYOMTNDGRAPHER, WASHINGTON, D. c4

4 Sheets-Sheet 4.

W. H. ROSEWA-RNB.

Coke-Oven." No. 208,930.

"Pafentedocig 15,1878...

N. PETERs,Pti0T0-Lr ri-1DGHAPHER. WASHINGTON D C 'A HIE UNITED STATES PATENT OEEIGE.-

VILLIAlNI H. ROSEWARNE, OF CINCINNATI, OHIO, ASSIGNOR, ABY MESNE ASSIGNMENTS, TO HIMSELF, DANIEL PHILLIPS, JOHN BEES, AND MAR' GARET J. PHILLIPS, OF NEVVIORT, KENTUCKY.

IM PROVEME'NT IN COKE-OVENS.

Specification forming part of Letters Patent No. 208,930, dated October 15, 1878; application ilcd June 18, 1878.

To all whom it may concern:

Be it known that I, WILLIAM HENRY Rosn- WARNE, of Cincinnati, Hamilton county, Ohio, have invented certain new and useful Improvements in Coke-Ovens, of which the following is a specification:

Heretofore, in the process of coke-makin g, a considerable amount of fuel has been consumed in igniting the charge of c'oal, and after ignition a still greaterwastewas occasioned by allowing the burning gases from the charge to pass off without doing any useful work. To prevent this loss, and to also shorten the time of the process, I construct the coke-ovens in pairs, so that they may act conjointly, and in the dividing-wall, near the top, I arrange, in a horizontal line, a number of connecting-fines, capable of being closed or opened by a horizontal damper, so as to allow the burning gases.

from the operating-oven to be conducted over for the purpose of igniting the fresh charge in the other oven; and in order to insure rapid combustion, I also provide a series of flues, so arranged as to conduct the gases from the ignited charge under the hearths, said hearths being sufficiently elevated and mounted on rollers in order to facilitate the charging and discharging of the ovens. Talled spaces beneath the hearth, and formed by it, constitute subhearth-ues, which communicate by other similarly-formed iues with the stack.

In the accompanying drawings, which represent in full lines the lsubject of the present application and in broken lines the subject of an application iled 3d May, 1878, Figure 1 represents a longitudinal section through one coke-oven. Fig. 2 is an end elevation, show'- ing the coke-ovens.v Fig. 8 is a horizontal section, showing the hearth-hues, connectingues and damper, downtakes, and stack. Fig. 4 is a longitudinal section through the rear end of oven.

A A are two similarly-built coke-ovens, provided with hearths B B. These hearths consists of cast-iron frames lined with fire-brick and mounted upon rollers b. By this arrange ment the whole charge, when coked, may be preserved intact and easily run out to any desired place, thus avoiding the waste consequent upon the usual method of breaking the mass in order to remove it from the oven.

C C are connecting-fines in the dividingwall between the ovens, which communicate directly with both ovens, and are capable of being opened or closed by a suitable damper, D, so as to throw the ovens A A in or out of communication. vided at the top with an exit, E, controlled by damper c, which leads to a ue, H, extending across both the ovens, and which, at each end, enters downtakes I I, that lead to subhearthiiues J under the hearths B B, which communicate by flues K K and S S with the stack L. The downtakes I I can be closed at the top by dampers I I', by means of which all the gases may be made to pass under either one of t-he hearths to the exclusion of the other.

The operation is as follows: The contents of one of the ovens having become thoroughly ignited, the other oven is then charged and the damper D opened, whereupon the burning gases from the combustion in the first oven pass through 4tlues C, and, after igniting the fresh charge from above, pass through iiue E (the damper e being open) into Hue H and downtakes I I to the hearth-nues J J, where they raise the temperature of the hearth in the second oven to a degree sufficient to ignite the charge of coal supported upon it. From the hearth-fines J the products pass through flue K into the iue S, and thence escape into stack L.

The separability of the portable hearths and constant closure of the flue and oven doors, save at the instant of withdrawal, enables a batch of coke to be easily discharged without fracture of the blocks or injury to the workmen, and with great economy of time, labor,

and fuel. This arrangement materially reduces the oost of coke by dispensing with the arduous and expensive services of coke-drawers.

By causing the gases to ypass under the hearth I secure a thorough and rapid baking of the coke and a certain remedy for raw coal and chilled hearths, and for the same reason u reduce the time of coking to about one-half of that usually required.

I claim as new and of my inventionw Each ofthe ovens is pro-4 1. The compound coke-ovens A A, having in the Wall dividing said ovens7 at the upper part, the horizontally-arranged single line of eonneetin g-flues C, controlled by damper D, operatin g in a horizontal direction, whereby the respective ovens may be thrown in or out of communication, so as to utilize the burning gases from the coke in one oven for ignitinga fresh charge of coal in the other oven, subst-antially as set forth.

2. In a eolie-oven, the portable hearth or hearths B, in combination with the subjacent Walled spaces J, constituting subheartlrilues, substantially as set forth.

of the (for a time being) freshly-chargedoven.`

In testimony of which invention I hereunto set my hand.

VILLIAM HY. ROSEVARNE.

Attest WALTER KNIGHT, WALTER ALLEN. 

